While Windows XP Pro does a good job of approximating the appropriate values to keep your internet speed optimized, there is always room for improvement based on the particulars of your internet setup. Through the use of a free downloadable internet optimization wizard, you can easily tweak the registry of Windows to improve your overall Internet speed and reliability. The process should take no longer than 10 to 20 minutes.

Download and install an internet optimization program such as TweakMaster or the TCP Optimizer. These are programs which can automatically test and tweak the registry of your Windows XP Pro setup to improve performance.

Open TweakMaster. From the main screen you should see a number of different options. Select the option for the "Connection Optimization Wizard."

Input the type of Internet connection that you are using, whether it is a modem, DSL, cable or another type of high speed internet.

Enter in the remaining required information, including your overall connection speed and your network setup to complete the process. TweakMaster will then test your internet connection and change your registry, optimizing your settings according to the results.